//
//  Country.h
//  08-HomeWork
//
//  Created by dllo on 16/7/13.
//  Copyright © 2016年 daming. All rights reserved.
//

#import <Foundation/Foundation.h>
// 1.创建协议
@protocol SaveEarth <NSObject>
// 声明协议方法
- (void)saveEarth;
@end
@interface Country : NSObject
// 2.设定委托方
@property (nonatomic, weak) id<SaveEarth> delegate;
- (void)dangerous;
@end
